1051213542 has 16 divisors (see below), whose sum is σ = 2102838192. Its totient is φ = 350336000.

The previous prime is 1051213519. The next prime is 1051213543. The reversal of 1051213542 is 2453121501.

It is a happy number.

It is a super-2 number, since 2×1051213542² = 2210099821768371528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051213543) 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, 23542 + ... + 51542.

It is an arithmetic number, because the mean of its divisors is an integer number (131427387).

Almost surely, 2^1051213542 is an apocalyptic number.

1051213542 is an abundant number, since it is smaller than the sum of its proper divisors (1051624650).

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

1051213542 is a wasteful number, since it uses less digits than its factorization.

1051213542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34263.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1051213542 is about 32422.4234442770. The cubic root of 1051213542 is about 1016.7877742079.

The spelling of 1051213542 in words is "one billion, fifty-one million, two hundred thirteen thousand, five hundred forty-two".