3945155137 has 32 divisors (see below), whose sum is σ = 5033041920. Its totient is φ = 3002902080.

The previous prime is 3945155119. The next prime is 3945155141. The reversal of 3945155137 is 7315515493.

It is a cyclic number.

It is not a de Polignac number, because 3945155137 - 2²³ = 3936766529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3945155093 and 3945155102.

It is not an unprimeable number, because it can be changed into a prime (3945155197) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3209439 + ... + 3210667.

It is an arithmetic number, because the mean of its divisors is an integer number (157282560).

Almost surely, 2^3945155137 is an apocalyptic number.

It is an amenable number.

3945155137 is a deficient number, since it is larger than the sum of its proper divisors (1087886783).

3945155137 is a wasteful number, since it uses less digits than its factorization.

3945155137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2181.

The product of its digits is 283500, while the sum is 43.

The square root of 3945155137 is about 62810.4699632155. The cubic root of 3945155137 is about 1580.1125723616.

The spelling of 3945155137 in words is "three billion, nine hundred forty-five million, one hundred fifty-five thousand, one hundred thirty-seven".