15145241451 has 4 divisors (see below), whose sum is σ = 20193655272. Its totient is φ = 10096827632.

The previous prime is 15145241399. The next prime is 15145241471. The reversal of 15145241451 is 15414254151.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15145241451 - 2⁷ = 15145241323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15145241471) 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, 2524206906 + ... + 2524206911.

It is an arithmetic number, because the mean of its divisors is an integer number (5048413818).

Almost surely, 2^15145241451 is an apocalyptic number.

15145241451 is a deficient number, since it is larger than the sum of its proper divisors (5048413821).

15145241451 is an equidigital number, since it uses as much as digits as its factorization.

15145241451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5048413820.

The product of its digits is 16000, while the sum is 33.

The spelling of 15145241451 in words is "fifteen billion, one hundred forty-five million, two hundred forty-one thousand, four hundred fifty-one".