1156157030 has 32 divisors (see below), whose sum is σ = 2503560960. Its totient is φ = 375533280.

The previous prime is 1156157017. The next prime is 1156157143. The reversal of 1156157030 is 307516511.

It is a junction number, because it is equal to n+sod(n) for n = 1156156984 and 1156157002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433316 + ... + 435975.

It is an arithmetic number, because the mean of its divisors is an integer number (78236280).

Almost surely, 2^1156157030 is an apocalyptic number.

1156157030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1156157030 is an abundant number, since it is smaller than the sum of its proper divisors (1347403930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1156157030 is a wasteful number, since it uses less digits than its factorization.

1156157030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869324.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 1156157030 is about 34002.3091862891. The cubic root of 1156157030 is about 1049.5559815745. Note that the first 3 decimals are identical.

The spelling of 1156157030 in words is "one billion, one hundred fifty-six million, one hundred fifty-seven thousand, thirty".