149946773 has 2 divisors, whose sum is σ = 149946774. Its totient is φ = 149946772.

The previous prime is 149946751. The next prime is 149946833. The reversal of 149946773 is 377649941.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145974724 + 3972049 = 12082^2 + 1993^2 .

It is a cyclic number.

It is not a de Polignac number, because 149946773 - 2¹⁸ = 149684629 is a prime.

It is a super-2 number, since 2×149946773² = 44968069466227058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149946743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74973386 + 74973387.

It is an arithmetic number, because the mean of its divisors is an integer number (74973387).

Almost surely, 2^149946773 is an apocalyptic number.

It is an amenable number.

149946773 is a deficient number, since it is larger than the sum of its proper divisors (1).

149946773 is an equidigital number, since it uses as much as digits as its factorization.

149946773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 50.

The square root of 149946773 is about 12245.2755379371. The cubic root of 149946773 is about 531.2664303477.

The spelling of 149946773 in words is "one hundred forty-nine million, nine hundred forty-six thousand, seven hundred seventy-three".