157293645 has 8 divisors (see below), whose sum is σ = 251669856. Its totient is φ = 83889936.

The previous prime is 157293641. The next prime is 157293667. The reversal of 157293645 is 546392751.

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

It is not a de Polignac number, because 157293645 - 2² = 157293641 is a prime.

It is a super-3 number, since 3×157293645³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 157293597 and 157293606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157293641) 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, 5243107 + ... + 5243136.

It is an arithmetic number, because the mean of its divisors is an integer number (31458732).

Almost surely, 2^157293645 is an apocalyptic number.

157293645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157293645 is a deficient number, since it is larger than the sum of its proper divisors (94376211).

157293645 is a wasteful number, since it uses less digits than its factorization.

157293645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10486251.

The product of its digits is 226800, while the sum is 42.

The square root of 157293645 is about 12541.6763233628. The cubic root of 157293645 is about 539.8051937920.

The spelling of 157293645 in words is "one hundred fifty-seven million, two hundred ninety-three thousand, six hundred forty-five".