148451904 has 84 divisors (see below), whose sum is σ = 430059084. Its totient is φ = 48955392.

The previous prime is 148451893. The next prime is 148451909. The reversal of 148451904 is 409154841.

It can be written as a sum of positive squares in 2 ways, for example, as 81866304 + 66585600 = 9048^2 + 8160^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (148451909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54544 + ... + 57200.

It is an arithmetic number, because the mean of its divisors is an integer number (5119751).

Almost surely, 2^148451904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 148451904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215029542).

148451904 is an abundant number, since it is smaller than the sum of its proper divisors (281607180).

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

148451904 is a wasteful number, since it uses less digits than its factorization.

148451904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2772 (or 2759 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 148451904 is about 12184.0840443589. The cubic root of 148451904 is about 529.4950738787.

The spelling of 148451904 in words is "one hundred forty-eight million, four hundred fifty-one thousand, nine hundred four".