137563663 has 4 divisors (see below), whose sum is σ = 139616920. Its totient is φ = 135510408.

The previous prime is 137563661. The next prime is 137563681. The reversal of 137563663 is 366365731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366365731 = 719 ⋅509549.

It is a cyclic number.

It is not a de Polignac number, because 137563663 - 2¹ = 137563661 is a prime.

It is a super-2 number, since 2×137563663² = 37847522755955138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137563661) 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, 1026528 + ... + 1026661.

It is an arithmetic number, because the mean of its divisors is an integer number (34904230).

Almost surely, 2^137563663 is an apocalyptic number.

137563663 is a deficient number, since it is larger than the sum of its proper divisors (2053257).

137563663 is an equidigital number, since it uses as much as digits as its factorization.

137563663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053256.

The product of its digits is 204120, while the sum is 40.

The square root of 137563663 is about 11728.7536848550. The cubic root of 137563663 is about 516.2197036785.

The spelling of 137563663 in words is "one hundred thirty-seven million, five hundred sixty-three thousand, six hundred sixty-three".