137421463 has 4 divisors (see below), whose sum is σ = 140773248. Its totient is φ = 134069680.

The previous prime is 137421457. The next prime is 137421469. The reversal of 137421463 is 364124731.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (137421457) and next prime (137421469).

It is a cyclic number.

It is not a de Polignac number, because 137421463 - 2¹³ = 137413271 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137421469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1675831 + ... + 1675912.

It is an arithmetic number, because the mean of its divisors is an integer number (35193312).

Almost surely, 2^137421463 is an apocalyptic number.

137421463 is a deficient number, since it is larger than the sum of its proper divisors (3351785).

137421463 is an equidigital number, since it uses as much as digits as its factorization.

137421463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3351784.

The product of its digits is 12096, while the sum is 31.

The square root of 137421463 is about 11722.6900922954. The cubic root of 137421463 is about 516.0417696992.

The spelling of 137421463 in words is "one hundred thirty-seven million, four hundred twenty-one thousand, four hundred sixty-three".