142449554 has 16 divisors (see below), whose sum is σ = 231583128. Its totient is φ = 65325312.

The previous prime is 142449547. The next prime is 142449581. The reversal of 142449554 is 455944241.

It can be written as a sum of positive squares in 4 ways, for example, as 42549529 + 99900025 = 6523^2 + 9995^2 .

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, 13367 + ... + 21530.

Almost surely, 2^142449554 is an apocalyptic number.

142449554 is a deficient number, since it is larger than the sum of its proper divisors (89133574).

142449554 is a wasteful number, since it uses less digits than its factorization.

142449554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35069.

The product of its digits is 115200, while the sum is 38.

The square root of 142449554 is about 11935.2232488546. The cubic root of 142449554 is about 522.2603209231.

The spelling of 142449554 in words is "one hundred forty-two million, four hundred forty-nine thousand, five hundred fifty-four".