157283745 has 16 divisors (see below), whose sum is σ = 266457600. Its totient is φ = 78950144.

The previous prime is 157283719. The next prime is 157283747. The reversal of 157283745 is 547382751.

It is a cyclic number.

It is not a de Polignac number, because 157283745 - 2²⁰ = 156235169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 157283697 and 157283706.

It is not an unprimeable number, because it can be changed into a prime (157283747) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 308145 + ... + 308654.

It is an arithmetic number, because the mean of its divisors is an integer number (16653600).

Almost surely, 2^157283745 is an apocalyptic number.

157283745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157283745 is a deficient number, since it is larger than the sum of its proper divisors (109173855).

157283745 is a wasteful number, since it uses less digits than its factorization.

157283745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616824.

The product of its digits is 235200, while the sum is 42.

The square root of 157283745 is about 12541.2816330708. The cubic root of 157283745 is about 539.7938685124.

The spelling of 157283745 in words is "one hundred fifty-seven million, two hundred eighty-three thousand, seven hundred forty-five".