1527120157 has 4 divisors (see below), whose sum is σ = 1541392416. Its totient is φ = 1512847900.

The previous prime is 1527120137. The next prime is 1527120169. The reversal of 1527120157 is 7510217251.

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: 7510217251 = 51059 ⋅147089.

It is a cyclic number.

It is not a de Polignac number, because 1527120157 - 2¹⁵ = 1527087389 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1527120107) 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, 7135969 + ... + 7136182.

It is an arithmetic number, because the mean of its divisors is an integer number (385348104).

Almost surely, 2^1527120157 is an apocalyptic number.

It is an amenable number.

1527120157 is a deficient number, since it is larger than the sum of its proper divisors (14272259).

1527120157 is a wasteful number, since it uses less digits than its factorization.

1527120157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14272258.

The product of its (nonzero) digits is 4900, while the sum is 31.

The square root of 1527120157 is about 39078.3847798243. The cubic root of 1527120157 is about 1151.5719289984.

The spelling of 1527120157 in words is "one billion, five hundred twenty-seven million, one hundred twenty thousand, one hundred fifty-seven".