142463890 has 16 divisors (see below), whose sum is σ = 256905432. Its totient is φ = 56881024.

The previous prime is 142463873. The next prime is 142463897. The reversal of 142463890 is 98364241.

It can be written as a sum of positive squares in 4 ways, for example, as 42003361 + 100460529 = 6481^2 + 10023^2 .

It is not an unprimeable number, because it can be changed into a prime (142463897) 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, 7219 + ... + 18358.

Almost surely, 2^142463890 is an apocalyptic number.

142463890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142463890 is a deficient number, since it is larger than the sum of its proper divisors (114441542).

142463890 is a wasteful number, since it uses less digits than its factorization.

142463890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26141.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 142463890 is about 11935.8238090213. The cubic root of 142463890 is about 522.2778402779.

The spelling of 142463890 in words is "one hundred forty-two million, four hundred sixty-three thousand, eight hundred ninety".