1501453121 has 4 divisors (see below), whose sum is σ = 1715946432. Its totient is φ = 1286959812.

The previous prime is 1501453111. The next prime is 1501453127. The reversal of 1501453121 is 1213541051.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1213541051 = 67 ⋅18112553.

It is a cyclic number.

It is not a de Polignac number, because 1501453121 - 2¹⁰ = 1501452097 is a prime.

It is a super-2 number, since 2×1501453121² = 4508722949121281282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1501453127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107246645 + ... + 107246658.

It is an arithmetic number, because the mean of its divisors is an integer number (428986608).

Almost surely, 2^1501453121 is an apocalyptic number.

It is an amenable number.

1501453121 is a deficient number, since it is larger than the sum of its proper divisors (214493311).

1501453121 is an equidigital number, since it uses as much as digits as its factorization.

1501453121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214493310.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1501453121 is about 38748.5886323618. The cubic root of 1501453121 is about 1145.0837695429.

Adding to 1501453121 its reverse (1213541051), we get a palindrome (2714994172).

The spelling of 1501453121 in words is "one billion, five hundred one million, four hundred fifty-three thousand, one hundred twenty-one".