2155351498 has 4 divisors (see below), whose sum is σ = 3233027250. Its totient is φ = 1077675748.

The previous prime is 2155351487. The next prime is 2155351519. The reversal of 2155351498 is 8941535512.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2117196169 + 38155329 = 46013^2 + 6177^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538837873 + ... + 538837876.

Almost surely, 2^2155351498 is an apocalyptic number.

2155351498 is a deficient number, since it is larger than the sum of its proper divisors (1077675752).

2155351498 is a wasteful number, since it uses less digits than its factorization.

2155351498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077675751.

The product of its digits is 216000, while the sum is 43.

The square root of 2155351498 is about 46425.7633001333. The cubic root of 2155351498 is about 1291.7328430130.

The spelling of 2155351498 in words is "two billion, one hundred fifty-five million, three hundred fifty-one thousand, four hundred ninety-eight".