1138962455 has 4 divisors (see below), whose sum is σ = 1366754952. Its totient is φ = 911169960.

The previous prime is 1138962403. The next prime is 1138962479. The reversal of 1138962455 is 5542698311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5542698311 = 467 ⋅11868733.

It is not a de Polignac number, because 1138962455 - 2²⁸ = 870526999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113896241 + ... + 113896250.

It is an arithmetic number, because the mean of its divisors is an integer number (341688738).

Almost surely, 2^1138962455 is an apocalyptic number.

1138962455 is a deficient number, since it is larger than the sum of its proper divisors (227792497).

1138962455 is an equidigital number, since it uses as much as digits as its factorization.

1138962455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227792496.

The product of its digits is 259200, while the sum is 44.

The square root of 1138962455 is about 33748.5178193058. The cubic root of 1138962455 is about 1044.3269110130.

The spelling of 1138962455 in words is "one billion, one hundred thirty-eight million, nine hundred sixty-two thousand, four hundred fifty-five".