144913634 has 4 divisors (see below), whose sum is σ = 217370454. Its totient is φ = 72456816.

The previous prime is 144913633. The next prime is 144913663. The reversal of 144913634 is 436319441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 436319441 = 4621 ⋅94421.

It can be written as a sum of positive squares in only one way, i.e., 140304025 + 4609609 = 11845^2 + 2147^2 .

It is a super-2 number, since 2×144913634² = 41999922638171912, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 144913594 and 144913603.

It is not an unprimeable number, because it can be changed into a prime (144913633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36228407 + ... + 36228410.

Almost surely, 2^144913634 is an apocalyptic number.

144913634 is a deficient number, since it is larger than the sum of its proper divisors (72456820).

144913634 is an equidigital number, since it uses as much as digits as its factorization.

144913634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72456819.

The product of its digits is 31104, while the sum is 35.

The square root of 144913634 is about 12038.0078916738. The cubic root of 144913634 is about 525.2544604711.

The spelling of 144913634 in words is "one hundred forty-four million, nine hundred thirteen thousand, six hundred thirty-four".