1249578054 has 24 divisors (see below), whose sum is σ = 2849915640. Its totient is φ = 394603488.

The previous prime is 1249578041. The next prime is 1249578079. The reversal of 1249578054 is 4508759421.

1249578054 is a `hidden beast` number, since 1 + 24 + 9 + 578 + 0 + 54 = 666.

It is a super-2 number, since 2×1249578054² = 3122890626076853832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1826527 + ... + 1827210.

It is an arithmetic number, because the mean of its divisors is an integer number (118746485).

Almost surely, 2^1249578054 is an apocalyptic number.

1249578054 is an abundant number, since it is smaller than the sum of its proper divisors (1600337586).

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

1249578054 is a wasteful number, since it uses less digits than its factorization.

1249578054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3653764 (or 3653761 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 1249578054 is about 35349.3713381158. The cubic root of 1249578054 is about 1077.0961240286.

The spelling of 1249578054 in words is "one billion, two hundred forty-nine million, five hundred seventy-eight thousand, fifty-four".