2142538497 has 48 divisors (see below), whose sum is σ = 3416774400. Its totient is φ = 1282982400.

The previous prime is 2142538493. The next prime is 2142538499. The reversal of 2142538497 is 7948352412.

2142538497 is a `hidden beast` number, since 21 + 4 + 2 + 538 + 4 + 97 = 666.

It is not a de Polignac number, because 2142538497 - 2² = 2142538493 is a prime.

It is a super-2 number, since 2×2142538497² = 9180942422254038018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2142538493) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4970872 + ... + 4971302.

It is an arithmetic number, because the mean of its divisors is an integer number (71182800).

Almost surely, 2^2142538497 is an apocalyptic number.

It is an amenable number.

2142538497 is a deficient number, since it is larger than the sum of its proper divisors (1274235903).

2142538497 is a wasteful number, since it uses less digits than its factorization.

2142538497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934 (or 931 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 2142538497 is about 46287.5630920445. The cubic root of 2142538497 is about 1289.1680826876.

The spelling of 2142538497 in words is "two billion, one hundred forty-two million, five hundred thirty-eight thousand, four hundred ninety-seven".