1455020142 has 16 divisors (see below), whose sum is σ = 2923092480. Its totient is φ = 482831352.

The previous prime is 1455020137. The next prime is 1455020167. The reversal of 1455020142 is 2410205541.

It is a super-2 number, since 2×1455020142² = 4234167227251400328, 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, 542392 + ... + 545067.

It is an arithmetic number, because the mean of its divisors is an integer number (182693280).

Almost surely, 2^1455020142 is an apocalyptic number.

1455020142 is an abundant number, since it is smaller than the sum of its proper divisors (1468072338).

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

1455020142 is a wasteful number, since it uses less digits than its factorization.

1455020142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087687.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1455020142 is about 38144.7262672050. The cubic root of 1455020142 is about 1133.1559106536.

Adding to 1455020142 its reverse (2410205541), we get a palindrome (3865225683).

The spelling of 1455020142 in words is "one billion, four hundred fifty-five million, twenty thousand, one hundred forty-two".