149493187455 has 8 divisors (see below), whose sum is σ = 239189099952. Its totient is φ = 79729699968.

The previous prime is 149493187447. The next prime is 149493187463. The reversal of 149493187455 is 554781394941.

It is an interprime number because it is at equal distance from previous prime (149493187447) and next prime (149493187463).

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

It is not a de Polignac number, because 149493187455 - 2³ = 149493187447 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4983106234 + ... + 4983106263.

It is an arithmetic number, because the mean of its divisors is an integer number (29898637494).

Almost surely, 2^149493187455 is an apocalyptic number.

149493187455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

149493187455 is a deficient number, since it is larger than the sum of its proper divisors (89695912497).

149493187455 is an equidigital number, since it uses as much as digits as its factorization.

149493187455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9966212505.

The product of its digits is 21772800, while the sum is 60.

The spelling of 149493187455 in words is "one hundred forty-nine billion, four hundred ninety-three million, one hundred eighty-seven thousand, four hundred fifty-five".