1021514142 has 16 divisors (see below), whose sum is σ = 2228758272. Its totient is φ = 309549720.

The previous prime is 1021514107. The next prime is 1021514171. The reversal of 1021514142 is 2414151201.

It is a super-2 number, since 2×1021514142² = 2086982284611992328, 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 7 ways as a sum of consecutive naturals, for example, 7738678 + ... + 7738809.

It is an arithmetic number, because the mean of its divisors is an integer number (139297392).

Almost surely, 2^1021514142 is an apocalyptic number.

1021514142 is an abundant number, since it is smaller than the sum of its proper divisors (1207244130).

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

1021514142 is a wasteful number, since it uses less digits than its factorization.

1021514142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15477503.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1021514142 is about 31961.1348672102. The cubic root of 1021514142 is about 1007.1205579778.

Adding to 1021514142 its reverse (2414151201), we get a palindrome (3435665343).

The spelling of 1021514142 in words is "one billion, twenty-one million, five hundred fourteen thousand, one hundred forty-two".