1612117157 has 16 divisors (see below), whose sum is σ = 1955041920. Its totient is φ = 1297701888.

The previous prime is 1612117147. The next prime is 1612117159. The reversal of 1612117157 is 7517112161.

It is not a de Polignac number, because 1612117157 - 2⁶ = 1612117093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612117159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41069 + ... + 70077.

It is an arithmetic number, because the mean of its divisors is an integer number (122190120).

Almost surely, 2^1612117157 is an apocalyptic number.

1612117157 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1612117157 is a deficient number, since it is larger than the sum of its proper divisors (342924763).

1612117157 is a wasteful number, since it uses less digits than its factorization.

1612117157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29500.

The product of its digits is 2940, while the sum is 32.

The square root of 1612117157 is about 40151.1787747259. The cubic root of 1612117157 is about 1172.5522381758.

The spelling of 1612117157 in words is "one billion, six hundred twelve million, one hundred seventeen thousand, one hundred fifty-seven".