149481610491 has 8 divisors (see below), whose sum is σ = 200142743040. Its totient is φ = 99237442472.

The previous prime is 149481610463. The next prime is 149481610493. The reversal of 149481610491 is 194016184941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149481610491 - 2¹⁴ = 149481594107 is a prime.

It is a super-2 number, since 2×149481610491² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 149481610491.

It is not an unprimeable number, because it can be changed into a prime (149481610493) 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, 104240295 + ... + 104241728.

It is an arithmetic number, because the mean of its divisors is an integer number (25017842880).

Almost surely, 2^149481610491 is an apocalyptic number.

149481610491 is a deficient number, since it is larger than the sum of its proper divisors (50661132549).

149481610491 is a wasteful number, since it uses less digits than its factorization.

149481610491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208482265.

The product of its (nonzero) digits is 248832, while the sum is 48.

The spelling of 149481610491 in words is "one hundred forty-nine billion, four hundred eighty-one million, six hundred ten thousand, four hundred ninety-one".