148761973 has 4 divisors (see below), whose sum is σ = 150206368. Its totient is φ = 147317580.

The previous prime is 148761971. The next prime is 148762021. The reversal of 148761973 is 379167841.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 148761973 - 2¹ = 148761971 is a prime.

It is a super-2 number, since 2×148761973² = 44260249221705458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148761971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722043 + ... + 722248.

It is an arithmetic number, because the mean of its divisors is an integer number (37551592).

Almost surely, 2^148761973 is an apocalyptic number.

It is an amenable number.

148761973 is a deficient number, since it is larger than the sum of its proper divisors (1444395).

148761973 is a wasteful number, since it uses less digits than its factorization.

148761973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444394.

The product of its digits is 254016, while the sum is 46.

The square root of 148761973 is about 12196.8017529187. The cubic root of 148761973 is about 529.8634666700.

The spelling of 148761973 in words is "one hundred forty-eight million, seven hundred sixty-one thousand, nine hundred seventy-three".