2142757497 has 16 divisors (see below), whose sum is σ = 2902874112. Its totient is φ = 1405750800.

The previous prime is 2142757489. The next prime is 2142757499. The reversal of 2142757497 is 7947572412.

It is not a de Polignac number, because 2142757497 - 2³ = 2142757489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2142757499) 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, 26368 + ... + 70574.

It is an arithmetic number, because the mean of its divisors is an integer number (181429632).

Almost surely, 2^2142757497 is an apocalyptic number.

It is an amenable number.

2142757497 is a deficient number, since it is larger than the sum of its proper divisors (760116615).

2142757497 is a wasteful number, since it uses less digits than its factorization.

2142757497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44468.

The product of its digits is 987840, while the sum is 48.

The square root of 2142757497 is about 46289.9286778452. The cubic root of 2142757497 is about 1289.2120053821.

The spelling of 2142757497 in words is "two billion, one hundred forty-two million, seven hundred fifty-seven thousand, four hundred ninety-seven".