157521153 has 8 divisors (see below), whose sum is σ = 221082400. Its totient is φ = 99487008.

The previous prime is 157521151. The next prime is 157521157. The reversal of 157521153 is 351125751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 157521153 - 2¹ = 157521151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157521153.

It is not an unprimeable number, because it can be changed into a prime (157521151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1381708 + ... + 1381821.

It is an arithmetic number, because the mean of its divisors is an integer number (27635300).

Almost surely, 2^157521153 is an apocalyptic number.

It is an amenable number.

157521153 is a deficient number, since it is larger than the sum of its proper divisors (63561247).

157521153 is a wasteful number, since it uses less digits than its factorization.

157521153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763551.

The product of its digits is 5250, while the sum is 30.

The square root of 157521153 is about 12550.7431254089. The cubic root of 157521153 is about 540.0653247447.

The spelling of 157521153 in words is "one hundred fifty-seven million, five hundred twenty-one thousand, one hundred fifty-three".