158857450 has 12 divisors (see below), whose sum is σ = 295474950. Its totient is φ = 63542960.

The previous prime is 158857427. The next prime is 158857487. The reversal of 158857450 is 54758851.

It can be written as a sum of positive squares in 3 ways, for example, as 133425601 + 25431849 = 11551^2 + 5043^2 .

It is a junction number, because it is equal to n+sod(n) for n = 158857397 and 158857406.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1588525 + ... + 1588624.

Almost surely, 2^158857450 is an apocalyptic number.

158857450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

158857450 is a deficient number, since it is larger than the sum of its proper divisors (136617500).

158857450 is a wasteful number, since it uses less digits than its factorization.

158857450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3177161 (or 3177156 counting only the distinct ones).

The product of its (nonzero) digits is 224000, while the sum is 43.

The square root of 158857450 is about 12603.8664702543. The cubic root of 158857450 is about 541.5882027042.

The spelling of 158857450 in words is "one hundred fifty-eight million, eight hundred fifty-seven thousand, four hundred fifty".