149644545 has 8 divisors (see below), whose sum is σ = 239431296. Its totient is φ = 79810416.

The previous prime is 149644487. The next prime is 149644603. The reversal of 149644545 is 545446941.

It is an interprime number because it is at equal distance from previous prime (149644487) and next prime (149644603).

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

It is not a de Polignac number, because 149644545 - 2¹⁶ = 149579009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149644497 and 149644506.

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, 4988137 + ... + 4988166.

It is an arithmetic number, because the mean of its divisors is an integer number (29928912).

Almost surely, 2^149644545 is an apocalyptic number.

149644545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149644545 is a deficient number, since it is larger than the sum of its proper divisors (89786751).

149644545 is an equidigital number, since it uses as much as digits as its factorization.

149644545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9976311.

The product of its digits is 345600, while the sum is 42.

The square root of 149644545 is about 12232.9287171961. The cubic root of 149644545 is about 530.9092556336.

The spelling of 149644545 in words is "one hundred forty-nine million, six hundred forty-four thousand, five hundred forty-five".