148719690 has 48 divisors (see below), whose sum is σ = 441911808. Its totient is φ = 33992928.

The previous prime is 148719677. The next prime is 148719691. The reversal of 148719690 is 96917841.

It is a happy number.

It is a super-2 number, since 2×148719690² = 44235092387392200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (148719691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117402 + ... + 118661.

It is an arithmetic number, because the mean of its divisors is an integer number (9206496).

Almost surely, 2^148719690 is an apocalyptic number.

148719690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

148719690 is an abundant number, since it is smaller than the sum of its proper divisors (293192118).

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

148719690 is a wasteful number, since it uses less digits than its factorization.

148719690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236083 (or 236080 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 148719690 is about 12195.0682654916. The cubic root of 148719690 is about 529.8132604255.

The spelling of 148719690 in words is "one hundred forty-eight million, seven hundred nineteen thousand, six hundred ninety".