1152215101 has 4 divisors (see below), whose sum is σ = 1152340672. Its totient is φ = 1152089532.

The previous prime is 1152215089. The next prime is 1152215131. The reversal of 1152215101 is 1015122511.

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: 1015122511 = 13 ⋅78086347.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1152215101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152215131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47835 + ... + 67768.

It is an arithmetic number, because the mean of its divisors is an integer number (288085168).

Almost surely, 2^1152215101 is an apocalyptic number.

It is an amenable number.

1152215101 is a deficient number, since it is larger than the sum of its proper divisors (125571).

1152215101 is an equidigital number, since it uses as much as digits as its factorization.

1152215101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125570.

The product of its (nonzero) digits is 100, while the sum is 19.

The square root of 1152215101 is about 33944.2940860463. The cubic root of 1152215101 is about 1048.3617994674.

Adding to 1152215101 its reverse (1015122511), we get a palindrome (2167337612).

The spelling of 1152215101 in words is "one billion, one hundred fifty-two million, two hundred fifteen thousand, one hundred one".