1054142531 has 4 divisors (see below), whose sum is σ = 1135230432. Its totient is φ = 973054632.

The previous prime is 1054142503. The next prime is 1054142539. The reversal of 1054142531 is 1352414501.

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

It is a cyclic number.

It is not a de Polignac number, because 1054142531 - 2²⁶ = 987033667 is a prime.

It is a super-2 number, since 2×1054142531² = 2222432951326171922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1054142531.

It is not an unprimeable number, because it can be changed into a prime (1054142539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40543931 + ... + 40543956.

It is an arithmetic number, because the mean of its divisors is an integer number (283807608).

Almost surely, 2^1054142531 is an apocalyptic number.

1054142531 is a deficient number, since it is larger than the sum of its proper divisors (81087901).

1054142531 is an equidigital number, since it uses as much as digits as its factorization.

1054142531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81087900.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1054142531 is about 32467.5612111535. The cubic root of 1054142531 is about 1017.7312547193.

The spelling of 1054142531 in words is "one billion, fifty-four million, one hundred forty-two thousand, five hundred thirty-one".