145401773 has 8 divisors (see below), whose sum is σ = 158713536. Its totient is φ = 132105600.

The previous prime is 145401769. The next prime is 145401779. The reversal of 145401773 is 377104541.

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

It is not a de Polignac number, because 145401773 - 2² = 145401769 is a prime.

It is a super-2 number, since 2×145401773² = 42283351183087058, 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 (145401779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24893 + ... + 30173.

It is an arithmetic number, because the mean of its divisors is an integer number (19839192).

Almost surely, 2^145401773 is an apocalyptic number.

It is an amenable number.

145401773 is a deficient number, since it is larger than the sum of its proper divisors (13311763).

145401773 is a wasteful number, since it uses less digits than its factorization.

145401773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7795.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 145401773 is about 12058.2657542451. The cubic root of 145401773 is about 525.8435696018.

The spelling of 145401773 in words is "one hundred forty-five million, four hundred one thousand, seven hundred seventy-three".