142451530 has 16 divisors (see below), whose sum is σ = 276137064. Its totient is φ = 52597440.

The previous prime is 142451527. The next prime is 142451537. The reversal of 142451530 is 35154241.

It is a happy number.

142451530 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 123676641 + 18774889 = 11121^2 + 4333^2 .

It is a junction number, because it is equal to n+sod(n) for n = 142451495 and 142451504.

It is not an unprimeable number, because it can be changed into a prime (142451537) 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, 547761 + ... + 548020.

Almost surely, 2^142451530 is an apocalyptic number.

142451530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142451530 is a deficient number, since it is larger than the sum of its proper divisors (133685534).

142451530 is a wasteful number, since it uses less digits than its factorization.

142451530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095801.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 142451530 is about 11935.3060287535. The cubic root of 142451530 is about 522.2627357701.

The spelling of 142451530 in words is "one hundred forty-two million, four hundred fifty-one thousand, five hundred thirty".