1496787138 has 48 divisors (see below), whose sum is σ = 4043272896. Its totient is φ = 388775520.

The previous prime is 1496787133. The next prime is 1496787143. The reversal of 1496787138 is 8317876941.

It is an interprime number because it is at equal distance from previous prime (1496787133) and next prime (1496787143).

It is not an unprimeable number, because it can be changed into a prime (1496787133) 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, 538581 + ... + 541352.

It is an arithmetic number, because the mean of its divisors is an integer number (84234852).

Almost surely, 2^1496787138 is an apocalyptic number.

1496787138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1496787138 is an abundant number, since it is smaller than the sum of its proper divisors (2546485758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1496787138 is a wasteful number, since it uses less digits than its factorization.

1496787138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079959 (or 1079956 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

The square root of 1496787138 is about 38688.3333577449. Note that the first 4 decimals coincide. The cubic root of 1496787138 is about 1143.8963674728.

It can be divided in two parts, 149678 and 7138, that added together give a square (156816 = 396²).

The spelling of 1496787138 in words is "one billion, four hundred ninety-six million, seven hundred eighty-seven thousand, one hundred thirty-eight".