3722151081 has 24 divisors (see below), whose sum is σ = 5468667552. Its totient is φ = 2233312000.

The previous prime is 3722151047. The next prime is 3722151089. The reversal of 3722151081 is 1801512273.

It is not a de Polignac number, because 3722151081 - 2⁷ = 3722150953 is a prime.

It is a super-2 number, since 2×3722151081² = 27708817339578937122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3722151089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 331105 + ... + 342161.

It is an arithmetic number, because the mean of its divisors is an integer number (227861148).

Almost surely, 2^3722151081 is an apocalyptic number.

It is an amenable number.

3722151081 is a deficient number, since it is larger than the sum of its proper divisors (1746516471).

3722151081 is a wasteful number, since it uses less digits than its factorization.

3722151081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11273 (or 11172 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 3722151081 is about 61009.4343605971. The cubic root of 3722151081 is about 1549.7607790371.

The spelling of 3722151081 in words is "three billion, seven hundred twenty-two million, one hundred fifty-one thousand, eighty-one".