149249381454 has 12 divisors (see below), whose sum is σ = 323373659856. Its totient is φ = 49749793812.

The previous prime is 149249381453. The next prime is 149249381467. The reversal of 149249381454 is 454183942941.

149249381454 is a `hidden beast` number, since 1 + 4 + 9 + 2 + 493 + 8 + 145 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 149249381454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149249381453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4145816134 + ... + 4145816169.

It is an arithmetic number, because the mean of its divisors is an integer number (26947804988).

Almost surely, 2^149249381454 is an apocalyptic number.

149249381454 is an abundant number, since it is smaller than the sum of its proper divisors (174124278402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149249381454 is a wasteful number, since it uses less digits than its factorization.

149249381454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8291632311 (or 8291632308 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The spelling of 149249381454 in words is "one hundred forty-nine billion, two hundred forty-nine million, three hundred eighty-one thousand, four hundred fifty-four".