144997641 has 16 divisors (see below), whose sum is σ = 227448000. Its totient is φ = 90978624.

The previous prime is 144997613. The next prime is 144997669. The reversal of 144997641 is 146799441.

It is an interprime number because it is at equal distance from previous prime (144997613) and next prime (144997669).

It is not a de Polignac number, because 144997641 - 2⁵ = 144997609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144992641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157491 + ... + 158408.

It is an arithmetic number, because the mean of its divisors is an integer number (14215500).

Almost surely, 2^144997641 is an apocalyptic number.

It is an amenable number.

144997641 is a deficient number, since it is larger than the sum of its proper divisors (82450359).

144997641 is a wasteful number, since it uses less digits than its factorization.

144997641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315925 (or 315919 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 144997641 is about 12041.4966262504. The cubic root of 144997641 is about 525.3559382192.

The spelling of 144997641 in words is "one hundred forty-four million, nine hundred ninety-seven thousand, six hundred forty-one".