157613545 has 8 divisors (see below), whose sum is σ = 200262024. Its totient is φ = 118673664.

The previous prime is 157613537. The next prime is 157613551. The reversal of 157613545 is 545316751.

It can be written as a sum of positive squares in 4 ways, for example, as 80946009 + 76667536 = 8997^2 + 8756^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 157613545 - 2³ = 157613537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 927054 + ... + 927223.

It is an arithmetic number, because the mean of its divisors is an integer number (25032753).

Almost surely, 2^157613545 is an apocalyptic number.

It is an amenable number.

157613545 is a deficient number, since it is larger than the sum of its proper divisors (42648479).

157613545 is a wasteful number, since it uses less digits than its factorization.

157613545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854299.

The product of its digits is 63000, while the sum is 37.

The square root of 157613545 is about 12554.4233240719. The cubic root of 157613545 is about 540.1708935569.

It can be divided in two parts, 15761 and 3545, that added together give a triangular number (19306 = T₁₉₆).

The spelling of 157613545 in words is "one hundred fifty-seven million, six hundred thirteen thousand, five hundred forty-five".