142146451 has 2 divisors, whose sum is σ = 142146452. Its totient is φ = 142146450.

The previous prime is 142146437. The next prime is 142146457. The reversal of 142146451 is 154641241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142146451 - 2²³ = 133757843 is a prime.

It is a super-2 number, since 2×142146451² = 40411227063790802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (142146457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71073225 + 71073226.

It is an arithmetic number, because the mean of its divisors is an integer number (71073226).

Almost surely, 2^142146451 is an apocalyptic number.

142146451 is a deficient number, since it is larger than the sum of its proper divisors (1).

142146451 is an equidigital number, since it uses as much as digits as its factorization.

142146451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 28.

The square root of 142146451 is about 11922.5186516944. The cubic root of 142146451 is about 521.8896374682.

Adding to 142146451 its reverse (154641241), we get a palindrome (296787692).

The spelling of 142146451 in words is "one hundred forty-two million, one hundred forty-six thousand, four hundred fifty-one".