1054639531 has 8 divisors (see below), whose sum is σ = 1152044784. Its totient is φ = 957489120.

The previous prime is 1054639519. The next prime is 1054639559. The reversal of 1054639531 is 1359364501.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1054639531 - 2²³ = 1046250923 is a prime.

It is a super-2 number, since 2×1054639531² = 2224529080695799922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1054639511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55000 + ... + 71653.

It is an arithmetic number, because the mean of its divisors is an integer number (144005598).

Almost surely, 2^1054639531 is an apocalyptic number.

1054639531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1054639531 is a deficient number, since it is larger than the sum of its proper divisors (97405253).

1054639531 is a wasteful number, since it uses less digits than its factorization.

1054639531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127421.

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 1054639531 is about 32475.2141024505. The cubic root of 1054639531 is about 1017.8911739419.

The spelling of 1054639531 in words is "one billion, fifty-four million, six hundred thirty-nine thousand, five hundred thirty-one".